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pig iron the crude impure iron which is extracted from iron ore is known as the iron it forms the basic material for the manufacturer of cast iron wrought iron and steel.while, cast iron is a manufacturer smelting iron with coke and limestone . this remelting is done in a furnace known as the cupola furnace shape is cylindrical rod . Wrought iron and is almost pure and it hardly contains carbon more than 0. 15 percent?????????ok

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What is Ecell

Posted by Vipin Chauhan 7 years, 4 months ago

CBSE > Class 12 > Chemistry

2 answers

Dhruv G 7 years, 3 months ago

A cell that converts chemical energy into electricity. Eg. Dry cell, Mercury cell, etc.

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Raj Singh 7 years, 4 months ago

tendency of metal electrode to loss or to gain the electron is called its electrode potential

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Which disease is caused due toh deficiency of vitamin B6

Posted by Nikki Dhakad 7 years, 4 months ago

CBSE > Class 12 > Chemistry

1 answers

Dhruv G 7 years, 3 months ago

Seborrhoeic Dermatitis like eruptions, pink eye, epilepsy.

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What is the name of compound H2P2O6

Posted by Manoj Kumar Gupta 7 years, 4 months ago

CBSE > Class 12 > Chemistry

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Define Faraday's second law of electrolysis?

Posted by Kriti Yadav 7 years, 4 months ago

CBSE > Class 12 > Chemistry

2 answers

Kriti Yadav 7 years, 4 months ago

Thx dude

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Raj Singh 7 years, 4 months ago

when the same amount of electricity is passed through te solutions of different electrolyte connected in series,then the weight of the substance produced at the electrode is directly proportional to the equivalent weight of the substance.....

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The rate of reaction is x2y becomes8 times when concof reactant is doubled what is rate law

Posted by Aman Vats 7 years, 4 months ago

CBSE > Class 12 > Chemistry

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Define fuel cell

Posted by Ravish Kumar 7 years, 4 months ago

CBSE > Class 12 > Chemistry

1 answers

Tannu Sehwag 7 years, 4 months ago

Galvonic cells that are designed to convert the energy of combustion of fuels like hydrogen,methane,methanol,etc directly into electrical energy are called fuel cell

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Important concepts in chapter Aldehyde , ketones and Carboxylic acid??

Posted by Ravi P S 7 years, 4 months ago

CBSE > Class 12 > Chemistry

1 answers

Chemma Shaji 7 years, 4 months ago

Everything

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Calculate the half life a rate from there rate canstant given the ret billwo 200sec 2min sec and million invirase

Posted by Deepanjali Kumari 7 years, 4 months ago

CBSE > Class 12 > Chemistry

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Give some eg of electrophilic substitution reactions

Posted by Niharika Singh 7 years, 4 months ago

CBSE > Class 12 > Chemistry

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Why potential energy change when bond is formed ?

Posted by Sukhmanjeet Singh 7 years, 4 months ago

CBSE > Class 12 > Chemistry

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What are disproportionate substance??

Posted by Aryan Rajput 7 years, 4 months ago

CBSE > Class 12 > Chemistry

2 answers

Sweta Verma 7 years, 4 months ago

substance which show different oxidation no. In same reaction

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Aman Rajbhar 7 years, 4 months ago

Same species ka oxidation and reduction hoga

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What is the ratio of t3/4:t1/2 for first order teaction

Posted by Hritik Sharma 7 years, 4 months ago

CBSE > Class 12 > Chemistry

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polethene structure

Posted by Kuhu Yadav 7 years, 4 months ago

CBSE > Class 12 > Chemistry

1 answers

Sajid Khan 7 years, 4 months ago

[-CH2-CH2-]n where n€N it is the structure of polythene

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Lonization order of carbon, oxygen and nitrogen with reason

Posted by Jagyasenee Thakur 7 years, 4 months ago

CBSE > Class 12 > Chemistry

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In a zero order reaction for every 10 oC rise of temperature,the rate is doubled.if the temperature is increased from 10 to 100 oC ,what wil be the rate of the reaction

Posted by Aarti R Soni 7 years, 4 months ago

CBSE > Class 12 > Chemistry

1 answers

Rahul Sharma 7 years, 4 months ago

512 times than the initial rate

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When to use log(R/P) and log(cathode/anode) in nernst equation

Posted by Kumaril Joshi 7 years, 4 months ago

CBSE > Class 12 > Chemistry

1 answers

Vaibhav Chaudhary 7 years, 4 months ago

Log cathode /anode doesn't used in nest equation but u can use log p/r when the Condivity is given in the salt bridge reaction

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SNO2 forms a positively charged colloidal solution in acidec medium but negatively charged Sol in basic medium why ?

Posted by Dev Raj 7 years, 4 months ago

CBSE > Class 12 > Chemistry

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What is solid riged

Posted by Ankush Nain 7 years, 4 months ago

CBSE > Class 12 > Chemistry

2 answers

Raj Singh 7 years, 4 months ago

1)they have strong intermolecular force of attractions... 2)they have less intermolecular space b/w their molecules.. many more reasons are present....

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Unnati Verma. Unnati Verma. 7 years, 4 months ago

Whose molecules are very near to eachother

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Ca crystallizes in FCC structure. Radius of the atom in the metal is 141.4 pm what is the length of the side of the unit cell?

Posted by Naveen Sharma 7 years, 4 months ago

CBSE > Class 12 > Chemistry